Best Ever Chocolate Sponge Cake

Prep time: 15 min
Cook time: 40 min
Servings: 24
Yield: 24 servings

Description

White sugar and brown sugar come together with cocoa powder, eggs, and flour creating the best ever chocolate sponge cake.

Ingredients

1 cup butter, melted
1 cup white sugar
1/2 cup brown sugar
1 tablespoon vanilla extract
4 eggs
3/4 cup all-purpose flour
1/2 cup unsweetened cocoa powder
1 teaspoon salt
1/2 cup buttermilk, or as needed

Directions

1 Preheat oven to 350 degrees F (175 degrees C). Grease a 9x13-inch baking dish.
2 Stir butter, white sugar, and brown sugar together in a bowl; add vanilla extract and mix well. Stir eggs, 1 at a time, into butter mixture until smooth.
3 Sift flour, cocoa powder, and salt together in a separate bowl. Stir flour mixture, alternating with buttermilk, into butter mixture until batter is smooth, adding more buttermilk if needed to thin out batter. Pour batter into the prepared baking dish.
4 Bake in the preheated oven until a toothpick inserted in the center comes out clean, 40 to 45 minutes.